Enable react linting rules, fix linting errors

Also fix lint command in `package.json`

.eslintrc

@@ -110,6 +110,9 @@
     "quote-props": ["warn", "consistent-as-needed"],
     "quotes": ["error", "single", "avoid-escape"],
     "radix": "error",
+    "react/wrap-multilines": "error",
+    "react/no-string-refs": "error",
+    "react/jsx-boolean-value": "error",
     "react/jsx-closing-bracket-location": ["error", "line-aligned"],
     "react/jsx-curly-spacing": "error",
     "react/jsx-equals-spacing": "error",
@@ -119,6 +122,8 @@
     "react/jsx-uses-react": "error",
     "react/jsx-uses-vars": "error",
     "react/prefer-stateless-function": "error",
+    "react/prefer-es6-class": "error",
+    "react/jsx-pascal-case": "error",
     "react/require-render-return": "error",
     "react/self-closing-comp": "error",
     "semi": "error",

js/__tests__/EqGraph--test.js

@@ -1,8 +1,7 @@
 jest.unmock('../components/EqGraph.jsx');
 
 import {
-  roundToEven,
-  getY
+  roundToEven
 } from '../components/EqGraph.jsx';
 
 describe('roundToEven', () => {

package.json

@@ -4,7 +4,7 @@
   "description": "Winamp 2 implemented in HTML5 and JavaScript",
   "main": "index.html",
   "scripts": {
-    "lint": "eslint js/*.js js/*.jsx",
+    "lint": "eslint js/*.js js/*.jsx .",
     "build": "webpack --config=webpack.production.config.js",
     "serve": "webpack-dev-server",
     "weight": "npm run build && gzip-size built/winamp.js | pretty-bytes",

webpack.production.config.js

@@ -11,7 +11,7 @@ config.plugins = (config.plugins || []).concat([
 ]);
 
 config.entry = (config.entry || []).concat([
-    './js/googleAnalytics.min.js'
+  './js/googleAnalytics.min.js'
 ]);
 
 module.exports = config;